Frequency controlled mechanism



March 24, 1936. w, EN 2,035,132

FREQUENCY CONTROLLED MECHANISM Original Filed Jan. 13, 1931 lNVE/VTOR.

8y 7 mole/Mm Patented Mar. 24, 1936 UNITED STATES PATENT OFFICE WernerKoenig, Lucern Landis & Gyr, A.-G.

FREQUENCY CONTROLLED MECHANISM e, Switzerland, assignor to Zug,Switzerland, a corporation of Switzerland ber 24, 1934, Serial No.'754,691.' In Switzerland January 15, 1930 Claims.

This application is a division of my prior application Serial No.508,475, filed January 13, 1931, patented March 12, 1935, Number1,993,888.

The present invention relates to frequency con- 5 trolled mechanism andmore particularly to a novel and useful frequency controlled mechanismin which a rotating member is controlled and actuated by a frequencyresponsive member.

Objects and advantages of the invention will be set forth in parthereinafter and in part will be obvious herefrom, or may be learned bypractice with the invention, the same being realized and attained bymeans of the instrumentalities and combinations pointed out in theappended claims.

The invention consists in the novel parts, constructions, arrangements,combinations and improvements herein shown and described.

The accompanying drawing, referred to herein and constituting a parthereof, illustrates one embodiment of the invention, and together withthe description, serves to explain the principles of the invention.

The drawing shows a front elevation of one illustrative embodiment ofthe present invention, certain parts being omitted.

The present invention has for its object the provision of a frequencycontrolled mechanism, suitable for use in connection with the operationof switching mechanism, registers or recording mechanism. A furtherobject is the provision of such a mechanism which is efficient andreliable in its operation and at the same time simple and of relativelyinexpensive construction. Still another object is the provision of sucha mechanism in which the parts need not be initially adjusted, and neednot be adjusted from time to time to compensate for wear.

In accordance with the present invention, a resonant reed is provided,adapted to vibrate when subjected to a driving force of the properfrequency, and cooperates with a rotating member to intermittentlyrotate the member. As embodied, the rotating member is normally heldagainst rotation by means which are released only by resonant vibrationof the vibratory member.

It will be understood that the foregoing general description and thefollowing detailed description as well, are exemplary and explanatory ofthe invention, but are not restrictive thereof.

Referring now in detail to the present preferred and illustrativeembodiment of the present invention, a resonant spring member or reedill of resilient magnetic material is securely mounted in a frame bymeans of the cross members II, and its free end is positioned betweenthe pole pieces l2 of a driving electromagnet l3, which may be suppliedwith a fluctuating or alternating electrical current of a predeterminedfrequency through the mains I4.

Cooperating with the resonant reed I0 is a rotatable member adapted tobe rotated by vibration of the reed, but normally held against rotationand released only by vibration of the reed at its resonant frequency.Reed I0 is associated with a rotatable shaft I5, to be driven andcontrolled by vibration of the reed, and shaft 15 carries a notched disc16 which together with pin Il' carried by the pivoted pawl l9, servesnormally to prevent rotation of shaft [5. Pawl I9 is provided at itsfree end, with a downwardly extending nose 2| which rests on the reed l0so that pawl 19 is raised releasing disc [6 on resonant vibration ofreed l0.

Shaft I5 is rotatable in the bearings 22 and has a limited degree ofhorizontal movement, being pressed toward the free end of reed ID bypivoted lever 24 and spring 25. For driving the shaft, in the directionof the arrow, reed I0 is provided with a laterally extending plate 30and a smooth disc 3| is fixed on shaft l5 so that it is pressed againstthe plate 30 by spring 25. On vibration of the reed I0, plate 30 issimilarly vibrated and contacts with the periphery of the disc 31 on itsdownward movement.

On its upward movement, plate 30 is released from contact with the disc3|, due to the smaller mass and faster movement of the plate 30 underinfluence of reed to, than the lateral movement of discs l6 and 3| underspring 25.

Resonant vibration of the reed l0, first lifts pin I! out of engagementwith the notch 21 on disc I6, and at the same time slightly advances thediscs 16 and 3| to move the notch out of position to be engaged by thepin ll. On further vibration of the reed, plate 30 intermittentlyadvances the discs l6 and 3| and shaft 15 until the pin I! again dropsin one of the notches.

The invention in its broader aspects is not limited to the specificmechanisms shown and described but departures may be made therefromwithin the scope of the accompanying claims without departing from theprinciples of the invention and without sacrificing its chiefadvantages.

What I claim is:-

1. Frequency controlled mechanism including in combination a laterallym'ovable, rotatable disc,

a vibratable reed, means for vibrating the reed, a disc-engaging membercarried by the reed and means for yieldingly moving the disc into engagement with the member.

2. Frequently controlled mechanism including in combination .a laterallymovable, rotatable disc, a vibratable reed, means for vibrating thereed, a disc-engaging member carried by and vibrating with the reed,means for yieldingly moving the disc into engagement with the member,and means for preventing rotation of the disc except on resonantvibration of the reed.

3. Frequency controlled mechanism including in combination a laterallymovable, rotatable disc, a vibratable reed, an electromagnet forvibrating the reed, a disc-engaging member carried by and vibrating withthe reed, means for yieldingly moving the disc into driving engagementwith the member, a notched disc fixed relatively to the rotatable disc,and a pin engaging with said notched disc to prevent rotation ofthordisc, said pin being released only by resonant vibration of thereed.

4. Frequency controlled mechanism including in combination a rotatabledisc mounted on a movable axis, a vibratable reed, means for vibratingthe reed, a disc-engaging member carried by the reed and means foryieldingly moving the disc into engagement with the member to rotate thedisc.

5. Frequency controlled mechanism including a vibratable reed, means forvibrating the reed, a rotatable disc mounted on a movable axis, a secondrotatable disc fixed relatively to said first disc, a disc engagingmember carried by said reed and means for yieldingly pressing the firstdisc into engagement with said disc engaging member.

WERNER KOENIG. 20

